A lively, informal look at a fossil that may represent the first vertebrate to emerge from the ancient seas, discovered by scientists from the University of Chicago, Harvard University and the Academy of Natural Sciences in Philadelphia.

A lively, informal look at animal research by scientists from UC-Santa Cruz. They studied a common lizard species and found that slight genetic variations (as revealed by different throat colors) make a big difference in behavior.

A lively, informal look at earthquake research conducted by NSF's NEESWood project, featuring a full-size, three-bedroom house built on an indoor "shake table" at the State University of New York at Buffalo.

The universe is a big place with a long history. Dr. Eric Schulman brings it down to size in The History of the Universe in 60 Seconds or Less. Granted, he does a little abridging here and there, but basically he's got it right. Join Dr. Schulman for this whirlwind history lesson...and don't blink.

Scientists are working to gain a "deep time" perspective on climate change to better understand how Earth's climate has evolved over long periods of time. They hope this perspective will help them gain insights useful for predicting future climate change.

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